@inproceedings{liangboundary-bulk,
title={Boundary-bulk relation for topological orders as the functor mapping higher categories to their centers},
author={Liang Kong, Xiao-Gang Wen, and Hao Zheng},
url={http://archive.ymsc.tsinghua.edu.cn/pacm_paperurl/20170207025803226654226},
}

Liang Kong, Xiao-Gang Wen, and Hao Zheng. Boundary-bulk relation for topological orders as the functor mapping higher categories to their centers. http://archive.ymsc.tsinghua.edu.cn/pacm_paperurl/20170207025803226654226.